L-α-phosphatidylinositol (Soy) (sodium salt) is widely used in research and industrial applications due to its role as a key phospholipid. It is commonly employed in studies related to cell signaling, particularly in understanding the function of inositol phospholipids in cellular processes. This compound is utilized to investigate mechanisms involving membrane dynamics, lipid-protein interactions, and intracellular signaling pathways, especially those related to the PI3K/AKT and mTOR pathways.

In the food industry, it serves as an emulsifier and stabilizer, improving the texture and consistency of various products. It is also used in cosmetic formulations for its moisturizing and skin-barrier-enhancing properties. Additionally, it has applications in drug delivery systems, where it helps in the formulation of liposomes and other lipid-based carriers for targeted therapeutic delivery.

Its natural origin and biocompatibility make it a preferred choice in both scientific research and commercial applications.